Cellulose Versus Fiberglass Attic Insulation

When using cellulose blown in dry insulation it requires a machine to achieve its purpose and a training session from wherever you rent the blower from.

Cellulose versus fiberglass attic insulation.

Cellulose insulation blown in wall r 3 8 r3 9. The two main least expensive and most commonly used residential insulation materials is cellulose and fibreglass. Or 7 inches of cellulose. Cellulose and fiberglass are fibrous insulation which can easily trap moisture.

Cellulose insulation blown in attic r 3 6 r3 7. So it seems to me the real debate. Both fiberglass and cellulose insulation can be installed to completely fill the space inside of wall floor or ceiling cavity. So what are the advantages and disadvantages of each of these.

Fiberglass batts however are less expensive costing on average 0 30 to 0 40 a square foot for 6 inches of insulation. Unless you opt for spray foam then the insulation choices normally come down to cellulose and fibreglass. If paired with a vapor barrier in a high moisture environment like your basement it can be problematic. When comparing blown in insulation both fiberglass and cellulose are nearly identical in price both costing around 0 70 to 0 80 per square foot for 6 inches of insulation.

Assuming your current attic insulation is made from fiberglass and has a value of r 13 you d have to add roughly 10 inches of additional fiberglass to hit r 38. Lastly when blown onto the floor of an attic with vented soffits both loose fill cellulose and fiberglass are susceptible to wind.